Founded in 1956, Zhejiang Hisun Pharmaceutical Co., Ltd. is a comprehensive pharmaceutical enterprise integrating research, production, and marketing of drug substances and preparations. It focuses on innovative drugs, biological drugs, generic drugs, and high-end active pharmaceutical ingredients (API) across therapeutic areas like anti-tumor, anti-infection, cardiovascular, endocrine, immunosuppression, antidepressant, and orthopedics treatment. Hisun is a state-owned listed company recognized for its significant contributions during the COVID-19 pandemic.